METHOD FOR PRODUCE A STRETCH-MOLDED ARTICLE
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- CANON KK
- Filing Date
- 2024-04-19
- Publication Date
- 2026-04-22
AI Technical Summary
The use of material-recycled polystyrene in stretch-blow molding results in wax transfer to the surface of molded articles, leading to chemical attacks and image defects in toner bottles, and the addition of virgin materials to mitigate this issue reduces the reuse rate and increases environmental burden.
A method involving the use of a resin composition comprising a styrene-based resin and a carbodiimide compound to inhibit wax transfer by polymerizing the wax during the melt-kneading process, forming a preform that is then stretch-blow molded to produce a toner bottle.
Prevents wax transfer to the surface of the molded article, reducing chemical attacks and maintaining the integrity of the toner bottle, while minimizing the need for virgin materials and reducing environmental impact.